Experimental study of natural materials for an evaporative cooling design in hot-arid climate

This paper aims to evaluate the Pottery Water Wall in a hot arid climate using CFD simulation. The Pottery Water Wall is a passive system and an upgrade to the Water Wall. The Pottery Water Wall is a combination of a Water Wall and Porous Ceramic Pipes for evaporative cooling. First, the study will evaluate the efficiency of the Pottery Water Wall in cooling and heating in the most extreme climatic conditions of winter and summer in Luxor, Egypt. This study will aid determining the ability of the Pottery Water Wall to cool and heat buildings and its ability to achieve thermal comfort. The study found that the Pottery Water Wall's cooling ability ranges between 4°C to 10°C, while its heating ability ranges between 4°C to 15°C. The Pottery Water Wall achieved thermal comfort for 62.5% of a day resembling extreme summer and achieved thermal comfort 62.5% of a day resembling extreme winter. In conclusion, the Pottery Water Wall can reduce cooling and heating demand by 88% at the extreme climatic conditions of Luxor, Egypt.

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Thermal assessment of spray evaporative cooling in opaque double skin facade for cooling load reduction in hot arid climate

Journal of Building Engineering ◽

10.1016/j.jobe.2021.102156 ◽

2021 ◽

Vol 38 ◽

pp. 102156

Author(s):

Cristina Sotelo-Salas ◽

Carlos Escobar-del Pozo ◽

Carlos J. Esparza-López

Keyword(s):

Evaporative Cooling ◽

Arid Climate ◽

Load Reduction ◽

Cooling Load ◽

Hot Arid Climate ◽

Double Skin

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Experimental study on a cross-flow energy recovered indirect evaporative cooling (ERIEC)-assisted liquid desiccant dehumidifier (LDD) with improved spraying nozzle and surface wetness

Science and Technology for the Built Environment ◽

10.1080/23744731.2021.1885901 ◽

2021 ◽

pp. 1-14

Author(s):

Yanlin Ren ◽

Chunmei Guo ◽

Jian Lv ◽

Jixiang Xu ◽

Sihang Dong ◽

...

Keyword(s):

Experimental Study ◽

Evaporative Cooling ◽

Cross Flow ◽

Liquid Desiccant ◽

Surface Wetness ◽

Flow Energy ◽

Indirect Evaporative Cooling

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An experimental study on eco-friendly and cost-effective natural materials for productivity enhancement of single slope solar still

Environmental Science and Pollution Research ◽

10.1007/s11356-021-15764-8 ◽

2021 ◽

Author(s):

Sendhil Kumar Natarajan ◽

Subbarama Kousik Suraparaju ◽

Rajvikram Madurai Elavarasan ◽

Rishi Pugazhendhi ◽

Eklas Hossain

Keyword(s):

Experimental Study ◽

Cost Effective ◽

Solar Still ◽

Natural Materials ◽

Productivity Enhancement

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Recommended angle of a modular dynamic façade in hot-arid climate: daylighting and energy simulation

Smart and Sustainable Built Environment ◽

10.1108/sasbe-04-2021-0075 ◽

2021 ◽

Vol ahead-of-print (ahead-of-print) ◽

Author(s):

Seyedeh Samaneh Golzan ◽

Mina Pouyanmehr ◽

Hassan Sadeghi Naeini

Keyword(s):

Energy Consumption ◽

Energy Efficient ◽

Energy Performance ◽

Arid Climate ◽

Visual Comfort ◽

Building Envelopes ◽

Content Type ◽

Optimum Angle ◽

Energy Efficient Buildings ◽

Hot Arid Climate

PurposeThe modular dynamic façade (MDF) concept could be an approach in a comfort-centric design through proper integration with energy-efficient buildings. This study focuses on obtaining and/or calculating an efficient angle of the MDF, which would lead to the optimum performance in daylight availability and energy consumption in a single south-faced official space located in the hot-arid climate of Yazd, Iran.Design/methodology/approachThe methodology consists of three fundamental parts: (1) based on previous related studies, a diamond-based dynamic skin façade was applied to a south-faced office building in a hot-arid climate; (2) the daylighting and energy performance of the model were simulated annually; and (3) the data obtained from the simulation were compared to reach the optimum angle of the MDF.FindingsThe results showed that when the angle of the MDF openings was set at 30°, it could decrease energy consumption by 41.32% annually, while daylight simulation pointed that the space experienced the minimum possible glare at this angle. Therefore, the angle of 30° was established as the optimum angle, which could be the basis for future investment in responsive building envelopes.Originality/valueThis angular study simultaneously assesses the daylight availability, visual comfort and energy consumption on a MDF in a hot-arid climate.

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